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首页> 外文期刊>Philosophical magazine, B. Physics of condensed matter, electronic, optical, and magnetic properties >Photo-induced ring-to-chain conversion in as-evaporated films of amorphous selenium
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Photo-induced ring-to-chain conversion in as-evaporated films of amorphous selenium

机译：非晶态硒汽化膜中的光诱导环链转化

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摘要

Results of an in-situ extended X-ray absorption fine-structure study of photostructural changes in films of amorphous selenium are reported. It is shown that at first the average coordination number decreases by about 10%. As time elapses, the initial coordination number is restored. This change is attributed to breaking of ring-like structural fragments with subsequent formation of longer chains. This model is supported by a Raman scattering experiment demonstrating the disappearance upon photoexcitation of a peak at about 112 cm(-1) characteristic of rings. [References: 24]
机译：据报道，原位扩展的X射线吸收精细结构研究了非晶态硒薄膜的光结构变化。结果表明，起初，平均配位数下降了约10％。随着时间的流逝，将恢复初始协调编号。这种变化归因于环状结构片段的断裂以及随后较长链的形成。该模型得到拉曼散射实验的支持，该实验证明了在光激发时环的约112 cm（-1）特征峰消失。 [参考：24]

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